Agp riser cable’s

I have a bunch of AGPx8 riser-cables...or let's say they were sold as it. None of them worked.

I came up with this question in December last year, but no answer/solution, yet.

My founds

I am looking for one as well. So if I find one, I will let you know.

I'd bought two myself (some random ones off ebay) but none of them worked. I don't think that there is a source for a real working one.

Quote from Lmbue

Hallo Lmbue, haben Sie das Kabel mit einer Agp 8x Grafikkarte ausprobiert?

Hi Lmbue,

have you tried the cable with an Agp 8x graphics card?

hello, my question is, what is so difficult to build hq agp riser cables?

the small market needs vs costs? it looks on some pictures of oscars ebay advertises that he operates with agp riser cables on V5 xxxx repair projects.

maybe he build some on his own? (okay, there might be not 8x AGP) but what is the difference? better shielding needs and shorter cable length?

AGP is a parallel data bus system with a high frequency.

If you make the connections larger, you will get more parasitic inductances and capacities. This will make the connection worser, because the edges of the signals are getting rounded and some other HF effects will be stronger.

It may work with some lower speeds.

And there are special riser cards. I use one in my "Zwerg-PC".

I think CryptonNite answered that by using the Agp Riser on Pcb.

Correct me if I'm wrong, but are there smd capacitors installed in your riser?

I ask because I think they make the difference between agp extension cables and agp risers with pcb. A continuity of signal given by Smd capacitors.

Yes there are some capacitors, but don't ask for it. I didn't inspect it much.

It is used in the Evercase 1260 in order to install a bigger graphics card than low profile would allow.